. >> u.s. timid point out many industries and economies want an economy-wide cap and trade system so they know there are certainties about the system. does that mean that under current law that the epa could step in and say we're going to regulate transportation? >> that is exactly what is happening already. the epa is moving to regulate greenhouse gas emissions. they just announced and finalize regulations covering greenhouse gas emissions from automobiles. they have announced plans to go forward with regulations that would cover power plants. other industries. they're moving that direction. those regulations are likely to be more costly because the epa is not the expert on which technology is the best, they're just going to say you have to meet this emissions reduction and it will be much more expensive. >> could you want our viewers through what an energy-only bill looks like if they can't even do -- which it sells like it will be able to do -- cap and trade on utilities, if they can't do th